Category Archives: Triangles

Similar Triangles

Image Source: www.ebay.com Similar Triangles turn up in the strangest of places, even in Jewellery made from crystals of the gem stone “Tourmaline”. Images Sourced from Google Images In this lesson we look at the nature of similar figures, concentrating … Continue reading

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Congruent Triangles

Image Source: http://resources3.news.com.au Identical Twins have the exact same size and shape, and we instantly recognise that the two of them are exactly the same. When two items have the exact same size and shape, we say that they are … Continue reading

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Exterior Angle of a Triangle

Image Source: http://www.soulwire.co.uk Triangles can even be used in Art, as shown above in the great piece of artwork by Justin Windle from Soulwire. What we really like about this picture is the clever shading of the triangles to create … Continue reading

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Angle Sum in a Triangle

Image Source: http://www.greenpest.com.au Building Frames are “triangulated” to give them strength. Without a triangle structure the wood frame will not be rigid or strong. In Australia, the Sydney Harbor Bridge is made of an interwoven triangle structure. Image Source: http://www.orangehelicopters.com.au … Continue reading

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Classifying Triangles

Image Source: http://www.dalamatiacity.com The above diagram shows the atomic structure inside the crystal gemstone “Beryl”, which is composed of Silicon, Aluminium, Beryllium, and Oxygen ions. Topaz, Olivine, Amethyst, and several other crystals found in nature also have triangular atomic structures. … Continue reading

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